| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Kang Cheol-Woo | Crew | Directing | Director | 20 |
 Choi Joon-bae | Crew | Directing | Director | 20 |
 Choi Ran | Crew | Writing | Screenplay | 20 |
 Sung Chi-wook | Crew | Directing | Co-Director | 20 |
 Jung Eun-pyo | Cast | Actor | Kang Duk Soo | 2 |
 Ahn Jae-wook | Cast | Actor | Han Seo-jun | 2 |
 Ahn Nae-sang | Cast | Actor | Park Du-seok | 3 |
 Jeong Seok-yong | Cast | Actor | Woo Jae-pil | 1 |
 Jung Ae-ri | Cast | Actress | Choi Young-shin | 1 |
 Yoo Ha-bok | Cast | Actor | Shin Sung-min | 1 |
 Kim Young-jae | Cast | Actor | Go Moo-won | 20 |
 Kim Yeong-ok | Cast | Actress | Oh Bong-yi's Grandmother | 3 |
 Lee Eon-jeong | Cast | Actress | Pregnant Lady | 1 |
Jo Jae-yun | Cast | Actor | Daniel Lee | 20 |
 Lee Seung-gi | Cast | Actor | Jung Ba-reum | 20 |
 Woo Ji-hyeon | Cast | Actor | Koo Dong-koo | 20 |
 Kyung Soo-jin | Cast | Actress | Choi Hong-ju | 20 |
 Pyo Ji-hoon | Cast | Actor | Shin Sang | 3 |
 Lee Hee-jun | Cast | Actor | Go Moo-chi | 20 |
 Kim Jung-nan | Cast | Actress | Sung Ji-eun | 4 |
 Kwak Min-ho | Cast | Actor | Prisoner | 2 |
 Park Eun-young | Cast | Actress | Staffing Agency Woman | 2 |
 Seo Jeong-yeon | Cast | Actress | Go Moo-chi's Mother | 1 |
 Kang Mal-geum | Cast | Actress | Jung Ba-Reum's Aunt | 2 |
 Cho Wan-ki | Cast | Actor | Reporter Yang | 2 |
 Hyun Bong-sik | Cast | Actor | Bok Ho-nam | 4 |
 Yoon Seo-hyun | Cast | Actor | Kang Ki-Hyeok | 3 |
 Song Boo-gun | Cast | Actor | Song Soo-ho | 3 |
 Song Min-jae | Cast | Actor | Young Go Mu-chi | 2 |
 Son Woo-hyeon | Cast | Actor | Kim Joon Sung | 2 |
 Jeong Kang-hee | Cast | Actor | Go Moo-chi's Dad | 1 |
 Cherish Maningat | Cast | Actress | Kim Han-Kook's Mother | 2 |
 Joo Ye-rim | Cast | Actress | Young Oh Bong-yi | 2 |
 Kim Kang-hoon | Cast | Actor | Young Jae-hoon | 3 |
 Lee Seo-jun | Cast | Actor | Na Chi Kook | 4 |
 Park Ju-hyun | Cast | Actress | Oh Bong-yi | 20 |
 Park So-yi | Cast | Actress | Young Choi Hong-joo | 2 |
 Han Chang-hyun | Cast | Actor | Government Employee | 1 |
 Song In-seop | Cast | Actor | Prison Doctor | 1 |
 Kim Kyeol | Cast | Actor | Jae-hoon's Father | 1 |
 Eom Hye-soo | Cast | Actress | Police Officer | 1 |
 Sung Chan-ho | Cast | Actor | Government Official | 1 |
 Kim Min-kyung | Cast | Actress | Song Soo-jung's Mother | 5 |
 Suh Dong-hyun | Cast | Actor | Teenage Go Moo-chi | 1 |
 Ha Young | Cast | Actress | Song Soo-jung | 1 |
 Seo Woo-jin | Cast | Actor | Young Jae-hoon | 1 |
 Kwon Hwa-woon | Cast | Actor | Sung Yo-han | 20 |
 Im Yu-ran | Cast | Actress | Witness | 1 |
 Min Eung-sik | Cast | Actor | Shin Jae-hyung | 1 |
 Kim Dong-ha | Cast | Actor | Jae Min | 1 |
 Yoo Yong | Cast | Actor | Sisters Killer | 1 |
 Ahn Seo-Yeon | Cast | Actress | Jae Hee | 1 |
 Chun Jung-Ha | Cast | Actress | Na Chi-Kook's Mom | 4 |
 Jo Yeon-ho | Cast | Actor | Young Go Moo-won | 2 |
 Jang Ui-don | Cast | Actor | Attorney Hwang | 1 |
 Bae Seong-il | Cast | Actor | Detective Interviewing Jae Hoon | 2 |
 Lee Do-Hyung | Cast | Actor | Jung Ba-Reum's Uncle | 1 |
 Park Jae-wan | Cast | Actor | Police Commissioner | 1 |
 Park Yong | Cast | Actor | Kim Ji-wan | 1 |
 Lee Ja-ryeong | Cast | Actress | Kim Woo-seon | 1 |
 Yoon Bok-sung | Cast | Actor | Jung Joong-suk | 1 |
 Park Hye Na | Cast | Actress | Byun Soon-Young | 2 |
 Kang Moon-kyung | Cast | Actor | President | 1 |
 Seon Ah Rin | Cast | Actress | Jo Mi-Jung | 3 |
 Kim Ha-eon | Cast | Actor | Kim Han-kook | 3 |
 Lee Jae-eun | Cast | Actress | Koo Dong-Koo's Mom | 1 |
 Kang Chan-yang | Cast | Actress | Nurse | 1 |
 Kim Mi-hye | Cast | Actress | Jae-hoon's Teacher | 1 |
Shim Yoo-Seung | Cast | Actor | Sherlock Hong-Ju staff | 2 |
 Kim Ro-sa | Cast | Actress | Student's Mom | 1 |
 Kim Young-Joo | Cast | Actor | Sherlock Hong-Ju staff | 2 |
 Byun Yun-jeong | Cast | Actress | Mrs. Oh | 2 |
 Park Ki-ryung | Cast | Actor | OBN News Chief | 2 |
 Kang Suk-won | Cast | Actor | Male Talk Show Guest | 1 |
 Jang Jae-kwon | Cast | Actor | Second Male Talk Show Guest | 1 |
 Jung Nan-Hee | Cast | Actress | Teacher | 1 |
 Oh Ji-young | Cast | Actress | Female Talk Show Guest | 1 |
 Kim Borana | Cast | Actress | Hostess Bar Manager | 1 |
 Kim Hyo-gyeong | Cast | Actress | Byun Min-Ji | 1 |
 Chae Yeon Hee | Cast | Actress | Grocery Store Employee | 1 |
 Kang Ro-chae | Cast | Actress | Park Hye Won | 1 |
 Kim Joo-ah | Cast | Actress | Orphanage Employee | 1 |
 Oh Min-joon | Cast | Actor | Bully | 1 |
 Choi Yi-sun | Cast | Actor | [Motorcycle deliveryman] | 1 |
 Yang Ha-yoon | Cast | Actress | Min-Jung | 1 |
 Kim Sung-kyung | Cast | Actress | Fact Check host | 1 |
| Person | Type | Job | Role(s) | Episodes |
